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Related Concept Videos

Glial Cells01:04

Glial Cells

Overview
Nervous Tissue: Glial Cells01:31

Nervous Tissue: Glial Cells

Glia, or neuroglia, are vital support cells that assist neurons in their functions. The term "glia" originates from the Greek word for "glue," reflecting their role in holding the nervous system together. These cells can be categorized into six types: four in the central nervous system (CNS) and two in the peripheral nervous system (PNS).
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial cells that interact...
Neurogenesis and Regeneration of Nervous Tissue01:15

Neurogenesis and Regeneration of Nervous Tissue

In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...

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Related Experiment Video

Updated: Jun 27, 2026

Combined Mechanical and Enzymatic Dissociation of Mouse Brain Hippocampal Tissue
07:14

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Published on: October 21, 2021

Specific glial populations regulate hippocampal morphogenesis.

Guy Barry1, Michael Piper, Charlotta Lindwall

  • 1The University of Queensland, Queensland Brain Institute, and School of Biomedical Sciences, Brisbane, 4067, Australia.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|November 21, 2008
PubMed
Summary
This summary is machine-generated.

Nuclear Factor I b (Nfib) deficiency disrupts hippocampal development in mice. This leads to abnormal glial cell maturation and severe defects in hippocampal fissure and dentate gyrus formation.

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Cell Biology

Background:

  • The hippocampus is crucial for spatial navigation, learning, memory, and adult neurogenesis.
  • Proper hippocampal development is essential for its complex functions.
  • Radial glia are implicated in hippocampal formation, but their specific roles remain unclear.

Purpose of the Study:

  • To investigate the role of Nuclear Factor I b (Nfib) in hippocampal development.
  • To define the function of specific glial subpopulations in hippocampal morphogenesis.

Main Methods:

  • Utilized Nfib-deficient mice models.
  • Analyzed hippocampal development at embryonic day 15.
  • Examined glial cell differentiation (nestin, GLAST, GFAP positive cells) and glial bundle formation.
  • Assessed hippocampal morphology and dentate granule neuron migration.

Main Results:

  • Nfib deficiency caused a failure in the development of a subpopulation of hippocampal glia.
  • Severe morphological defects were observed, including absent hippocampal fissure and dentate gyrus formation.
  • Immature glia failed to mature into GLAST- and GFAP-positive cells, and the supragranular glial bundle was absent.
  • Aberrant migration of dentate granule neurons occurred due to an incomplete radial glial scaffold.

Conclusions:

  • Nfib plays a critical role in hippocampal fissure and dentate gyrus formation.
  • Distinct glial bundles, regulated by Nfib, are essential for correct hippocampal morphogenesis.
  • Proper glial differentiation and scaffold formation are vital for neuronal migration and hippocampal organization.